学龄前期儿童是生长发育的关键阶段,此阶段营养不良会导致诸多健康问题和长远的不良影响[1]。近10 a来,我国儿童的营养膳食状况虽有很大改善,但钙(Ca)、铁(Fe)、锌(Zn)、维生素A等营养素的缺乏问题尚未得到解决,少数民族地区更为突出[2]。甘肃是多民族聚居区,由于地理位置、风俗习惯、生活方式、经济水平等方面的差异,膳食营养素摄入失衡的情况比较普遍且在不同民族间呈现不同的表现,从而影响学龄前儿童的营养状况甚至生长发育水平。本研究通过了解甘肃汉族、东乡族、裕固族学龄前儿童膳食结构,分析其营养状况,评价生长发育情况,为制 Preschool children are a critical stage of growth and development, malnutrition at this stage can lead to many health problems and long-term adverse effects [1]. Although the nutrition and dietary conditions of children in our country have greatly improved over the past 10 years, the problem of lack of nutrients such as calcium (Ca), iron (Fe), zinc (Zn) and vitamin A has not yet been solved and the ethnic minority areas are more prominent [2]. Gansu is a multi-ethnic area. Due to differences in geographical location, customs, lifestyles and economic level, imbalances in dietary nutrient intake are common and show different manifestations among different ethnic groups, thus affecting the nutrition of preschool children Status and even growth and development level. In this study, by understanding the dietary structure of Han, Dongxiang, Yugu preschool children in Gansu Province, analyzing their nutritional status, evaluating their growth and development,